Title:
多層光学フィルム製造方法
Document Type and Number:
Japanese Patent JP4394831
Kind Code:
B2
Abstract:
Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored films that are optically effective over diverse portions of the ultraviolet, visible, and infrared spectra.
Inventors:
Terence Di Nevin
Timothy J. Heblink
Carl A. Stover
Yaoki Joe Liu
Bruce A. Nerad
Andrew Jay Uderkirk
Timothy J. Heblink
Carl A. Stover
Yaoki Joe Liu
Bruce A. Nerad
Andrew Jay Uderkirk
Application Number:
JP2000539989A
Publication Date:
January 06, 2010
Filing Date:
January 13, 1999
Export Citation:
Assignee:
3M COMPANY
International Classes:
B29C48/21; G02B5/28; B29C48/07; B29C48/08; B29C48/305; B29C48/71; B29C48/92; B29C55/02; B29C59/02; B32B27/30; B32B27/36; B29L9/00
Domestic Patent References:
| JP4278324A | ||||
| JP6504008A | ||||
| JP9295346A | ||||
| JP2147335A | ||||
| JP3041401A | ||||
| JP7001690A | ||||
| JP51012871A |
Attorney, Agent or Firm:
Aoyama Aoi
Muneo Yamamoto
Muneo Yamamoto